57490320 has 40 divisors (see below), whose sum is σ = 178220736. Its totient is φ = 15330688.

The previous prime is 57490297. The next prime is 57490327. The reversal of 57490320 is 2309475.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (57490327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119532 + ... + 120011.

Almost surely, 2^57490320 is an apocalyptic number.

It is an amenable number.

57490320 is an abundant number, since it is smaller than the sum of its proper divisors (120730416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57490320 is a wasteful number, since it uses less digits than its factorization.

57490320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239559 (or 239553 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 57490320 is about 7582.2371368878. The cubic root of 57490320 is about 385.9504710628.

Adding to 57490320 its reverse (2309475), we get a palindrome (59799795).

The spelling of 57490320 in words is "fifty-seven million, four hundred ninety thousand, three hundred twenty".